Means for securing the head of a carpet-sweeper to a handle.



A. M. GRUBBS. MEANS FOR SECURING THE HEAD OF A CARPET SWEEPER TO A HANDLE. APPLICATION FILED NOV. 23. mm.

1,21 9,293. Patelited Mar. 13, 1917.

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ALBERT M. GRUIBBS, onroa'rLzivn, onncoiv.

MEANS FOR SECURING THE HEAD OF A CARPET-SRVEEPER 'l 0 A HANDLE.

Specification of Letters Patent.

Patented Mar. 13, 191'.

Application filed November 23, 1916. Serial No. 133,078.

To all whom it may concern: 7

Be it known that I, ALBERT M. GRUBBS,

a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented certain new and useful Improvements in Means for Securing the Head of a Carpet-Sweeper to a Handle, of which the following is a specification.

This invention relates to improvements in means for securing the head of a carpet sweeper to a handle.

lVhile the improvement is primarily designed to be used in connection with sweepers, it will be evident from the following description that it is applicable to other arts.

One of the prime objects of the invention is to provide a specially constructed screw stem with means for efiectually fastening the o screw in the handle, to prevent rotary or longitudinal movement between the screw and handle when attaching a head.

A further object of the invention is to provide specially constructed means for clamping the head to the handle.

The invention also comprehends improvements in the details of construction and arrangement of parts which will be herein after described and particularly pointed out 0 in the claims.

In the drawing Figure l is a detail perspective view of a part of a sweeper head attached to a handle by my improvement.

5 Fig. 2 is a longitudinal section of the same.

Fig. 3 is a detail horizontal section through the head and clamp.

1 indicates a handle, formed at its inner end with an open slot 2, at the end of which is a right angularly disposed opening 3. Fitting in the slot 2, is a screw a, the stem of which is bent intermediate its length to form a hump 5, while its inner end is bent at right angle to the body portion to form a lug 6. The portions of the stem each side of the hump are in alinement and rest snugly on the bottom wall of the slot, as shown in Fig. 2.

0 The outer surface of the hump normally extends a trifle beyond the periphery of the handle, as shown in dotted lines in Fig. 2, consequently when a ferrule 7, is forced over the end of the handle, it is frictionally 5 held in position by the action of the hump.

When the ferrule is driven on the handle,

it acts on the hump to effectually clamp the turning, and is also prevented from being pulled out longitudinally, the ferrule serving as a means for locking the stem in set position.-

10 indicates a bar of the head of a sweeper. This bar is provided with a bent portion 11, the legs 12, 12 thereof being spaced apart to form a seat 18, for a clamp 14s. The clamp comprises av central thickened body 1 portion 15, formed with a threaded opening 16, and at the ends of the central portion there are curved wings 17, designed to embrace the legs 12,-of the bent portion of the head bar, as clearly shown in Fig. 3. The central. portion 15 snugly fits in the seat 13, and when the clamp is applied to the handle, the head is absolutely prevented from turning, or becoming displaced.

- In use the stem of the screw is placed in the open slot in the handle, the hump thereof extending a trifle above the periphery of the handle, as shown in dotted lines in Fig. 2, and the lug at the end of the stem is inserted in the opening 3. The ferrule 7 is now driven on the end of the handle, and as it engages the hump, it forces the same inwardly as shown in full lines in Fig. 2, and

this creates frictional resistance between the stem and the ferrule, which forms a locking connection between the parts.

After the stem is locked in the handle, the wings 1'7, 17 of the clamp 14, are engaged with the legs 12, of the head bar, and then the screw is engaged in the threaded opening in the clamp, and the handle is rotated to draw the parts together.

When the clamp and the legs are drawn up to the end of the handle, an eifectual locking connection is obtained. The hump 5 and the lug prevent the stem turning in the slot, or pulling out, while the clamp binds the head to the end of the handle.

From the foregoing description it is evident I have provided a simple, effective and secure means for attaching a handle to a sweeper or the like.

l/Vhat I claim is 1. In combination, a head bar, a clamp engaging same and formed with a threaded opening, a handle having an open slot therein, a screw engaging the threaded opening and having its stem fitted in the slot, said stern having a lug and a portion which extends to the circumference of the handle, the lug engaging in an opening formed in the handle, and a ferrule fitted over the handle and engaging the portion of the stem which extends to the circumference of the handle to lock the stem in the slot.

2. In combination, a head bar, ahandle having an open slot and an opening in the bottom of same, a screw having its stem fitted in the slot, said stem having an intermediate hump to prevent rotation of the stem, and an end lug fitted in the opening to prevent longitudinal movement, a ferrule fitted over the slotted end of the handle, to confine the stem in the slot, and means for securing the head on the screw.

3. In combination, a handle having an open slot in one end, one wall of the slot having an opening, a screw projecting from the open slot, the stem of the screw fitting in the open slot, said stem being bent to form an intermediate hump and an end lug, the hump engaging the side walls of the slot and the lug engaging in the opening, and a ferrule fitted over the end of the handle to lock the stem in position.

4:. In combination, a handle having an open slot in one end, one wall of the slot having an opening, a screw projecting from the open slot, the'stem of the screw being resilient and seated in the open slot, said stem having its end bent to form a lug to engage in the opening and also provided with an intermediate bent portion to form a hump which normally projects beyond the periphery of the handle, and a ferrule fitted on the end of the handle and engaging and forcing the hump into the slot to form a frictional lock with the ferrule.

In combination, a. handle having an open slot, a screw having a stem seated in the slot, said stem having a lock at its end to engage the handle,.a ferrule on the handle to hold the stem in the slot, a sweeper head bar bent to form two legs and a cross bar, a clamp seated in the space formed by the legs and cross bar, said clamp having wings at its ends to embrace the legs, the screw extending through the central portion of the clamp to draw same and the legs against the end of the handle.

In testimony whereof I afliX my signature in the presence of two witnesses.

ALBERT M. GRUBBS. Witnesses MIRIAM. STERN, F. M. MEYER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

